Boxes & Mailers

SELECTION EXPERT ADVICE

Wall Strength & Load Capacity
MORE INFO
Match single-, double-, or triple-wall corrugated construction to your product weight to prevent in-transit damage and minimize costly returns.
Dimensional Weight Cost Control
MORE INFO
Right-sized boxes cut carrier DIM weight charges, selecting the optimal LxWxH for each SKU directly lowers your per-shipment freight cost.
Mailer Box vs. RSC: Choose Correctly
MORE INFO
Self-locking mailer boxes suit branded DTC shipments; traditional RSC corrugated boxes are ideal for palletized B2B and high-volume fulfillment.

Need help choosing boxes?

Pick the right corrugated box without overpaying for size or strength

Use these buying guides to size your box, compare board strength, and avoid dimensional weight surcharges.

Corrugated Boxes Guide → How to choose size, strength, and wall type Box Size Calculator → Find the smallest safe box for your product 32 ECT vs 200 lb Test → Which board strength rating fits your shipment
Overview

Boxes Mailers — compare in-stock Packrift options by exact spec, with public pricing and no account required. Ships from 5 US warehouses (Central IL, NE PA, South TX, SE GA, West CA), routed to the location nearest you. Below are verified catalog SKUs, collection paths, and a bulk-quote route.

What To Buy Here

  • You need a Packrift buying path for Boxes Mailers.
  • You want verified SKU links, current catalog specs, and a quote route instead of thin search copy.
  • You are comparing product fit before reordering or requesting a bulk quote.

Catalog Matches

SKU Product Dimensions Material Color Pack
1066 10x6x6 ECT-32 Kraft Long Corrugated Boxes - 25 Bundle 10 x 6 x 6 kraft corrugated kraft 25
1054 10x5x4 ECT-32 Kraft Corrugated Boxes - Long Side Opening, 25 Bundle 10 x 5 x 4 kraft corrugated kraft 25
1265 12x6x5" ECT-32 Kraft Corrugated Long Boxes - 25 Bundle 12 x 6 x 5 kraft corrugated kraft 25
1333 13x3x3 ECT-32 Kraft Corrugated Long Boxes - Easy Pack, 25 Bundle 13 x 3 x 3 kraft corrugated kraft 25
1388 13x8x8 ECT-32 Kraft Corrugated Boxes - Long Item Shipping, 25 Bundle 13 x 8 x 8 kraft corrugated kraft 25
1466 14x6x6" ECT-32 Kraft Corrugated Boxes - Long Item Shipping, 25 Bundle 14 x 6 x 6 kraft corrugated kraft 25
1477 14x7x7 ECT-32 Kraft Corrugated Boxes - Long Item Shipping, 25-Pack 14 x 7 x 7 kraft corrugated kraft 25
1664 16x6x4 ECT-32 Kraft Corrugated Boxes - Easy Pack Long Design, 25 Bundle 16 x 6 x 4 kraft corrugated kraft 25

Open a product page for current pricing and availability.

How To Choose

  • Start with the SKU row whose dimensions, material, color, and pack quantity match your current job.
  • Open the PDP before ordering when a field says not listed in current catalog data.
  • Use the bulk quote path for larger, recurring, mixed-SKU, or freight-sensitive purchases.

When Not To Use

  • Do not infer unlisted product specs from similar SKUs.
  • Do not use this page for regulated, food-contact, outdoor exposure, or load-rating requirements unless the exact SKU record verifies that requirement.

Substitutes and Accessories

Reorder or Bulk Quote

For reorders, use the linked PDP SKU or the reorder-by-SKU path. For larger or mixed orders, use the bulk quote path and include SKU, quantity, destination ZIP, and timing.

Related Paths

FAQ

Which products match this page?
The Catalog Matches table above lists verified in-stock SKUs for Boxes Mailers, with current dimensions, material, color, and pack quantity. Open a product page for full specs and current pricing.
What should I do when a field is not listed?
Do not infer it. Use the PDP or bulk quote path so the order can be checked against current catalog data.
Can I request a quote instead of ordering one SKU?
Yes. Use the bulk quote path with the relevant SKU list, quantities, destination ZIP, and required timing.

3086 Results

showing boxes & mailers products

IN STOCK Ship bulky items with confidence using these 16x12x4 white Tyvek expandable envelopes. Constructed from durable 18 lb. olefin, they're 10 times stronger than paper and feature self-sealing closures for quick, compliant shipping. 50 per case–the industrial packaging solution that protects your products and your bottom line.
Envelopes & Mailers

16x12x4 White Tyvek Expandable Envelopes - Tear Resistant, Case of 50

PN: TYE12164WS

16 x 12 x 4 in 18 lb. Olefin 50 PER CASE
$126.59 / CASE
IN STOCK Ship bulky items securely with our 12x16x2 First Class Tyvek expandable envelopes. Made from 18 lb. DuPont Tyvek olefin–10 times stronger than paper with superior tear, puncture, and moisture resistance. Self-seal closure for quick, reliable sealing. 100 envelopes per case.
Envelopes & Mailers

12x16x2 Tyvek Expandable Envelopes - First Class Self-Seal, Case/100

PN: TYE12162FC

12 x 16 x 2 in 18 lb. Olefin 100 PER CASE
$187.12 / CASE
IN STOCK Ship with confidence using these 16x12x2 expandable Tyvek envelopes, 10 times stronger than paper and built for puncture, tear, and moisture protection. Constructed from 18 lb. olefin with self-seal closure and 2-inch expansion capacity for bulky items. Case of 100 mailers ready to ship.
Envelopes & Mailers

16x12x2 Tyvek Expandable Self-Seal Envelopes White, 100/Case

PN: TYE12162WE

16 x 12 x 2 in 18 lb. Olefin 100 PER CASE
$172.54 / CASE
IN STOCK 10x15x2 White Tyvek Expandable Envelopes - Tear & Puncture Resistant, Case of 100
Envelopes & Mailers

10x15x2 White Tyvek Expandable Envelopes - Tear & Puncture Resistant, Case of 100

PN: TYE10152WS

10 x 15 x 2 in 18 lb. Olefin 100 PER CASE
$153.58 / CASE
IN STOCK 10x13x2 Expandable Tyvek Envelopes - Tear Resistant, 100/Case
Envelopes & Mailers

10x13x2 Expandable Tyvek Envelopes - Tear Resistant, 100/Case

PN: TYE10132WS

10 x 13 x 2 in 18 lb. Olefin 100 PER CASE
$141.88 / CASE
IN STOCK 10x13x2 White Tyvek Expandable Envelopes - Tear Resistant, Case of 100
Envelopes & Mailers

10x13x2 White Tyvek Expandable Envelopes - Tear Resistant, Case of 100

PN: TYE10132WE

10 x 13 x 2 in 18 lb. Olefin 100 PER CASE
$136.24 / CASE
IN STOCK Ship bulky items safely with these 10x13x1.5
Envelopes & Mailers

10x13x1.5" Tyvek Expandable Self-Seal Envelopes - First Class, 100/Case

PN: TYE10131FC

10 x 13 x 1 1/2 in 18 lb. Olefin 100 PER CASE
$125.78 / CASE
IN STOCK Expand your shipping protection with these 13x10x1.5
Envelopes & Mailers

13x10x1.5" White Expandable Tyvek Envelopes - Self-Seal, 100/Case

PN: TYE10131WE

13 x 10 x 1 1/2 in 18 lb. Olefin 100 PER CASE
$115.01 / CASE
IN STOCK Professional-grade 9x12x2 expandable Tyvek mailers deliver superior puncture, tear, and moisture protection–10 times stronger than paper envelopes. Self-sealing closure and 2-inch expansion accommodate bulky items without secondary packaging. Ships in cases of 100 for maximum cost efficiency.
Envelopes & Mailers

9x12x2 Tyvek Expandable Self-Seal Mailers White 100/Case

PN: TYE09122WE

9 x 12 x 2 in 18 lb. Olefin 100 PER CASE
$122.41 / CASE
IN STOCK Eliminate sealing delays with no-moisture self-seal technology. These 9x12 kraft envelopes feature durable 28lb paper stock with protected adhesive strip for consistent, dust-free performance. Sealed in cases of 500 for bulk mailroom efficiency.
Envelopes & Mailers

9x12 Kraft Self-Seal Envelopes 28lb Paper - 500/Case

PN: EN1033

9 x 12 in 28 lb. Paper Stock 500 PER CASE
$124.54 / CASE
IN STOCK Premium 12 x 15.5
Envelopes & Mailers

12 x 15.5 Yellow Tyvek Self-Seal Mailers - 10X Tear Resistant, Case of 100

PN: TYC1215Y

12 x 15 1/2 in 14 lb. Olefin 100 PER CASE
$178.37 / CASE
IN STOCK Professional-grade 12 x 15.5
Envelopes & Mailers

12 x 15.5" Silver Tyvek Self-Seal Mailers - Tear Resistant, Case of 100

PN: TYC1215S

12 x 15 1/2 in 14 lb. Olefin 100 PER CASE
$178.37 / CASE
IN STOCK Professional red Tyvek envelopes provide 10x stronger protection than paper with superior tear, puncture, and moisture resistance. Self-sealing closure ensures fast, reliable shipping for every package. 12 x 15.5
Envelopes & Mailers

12 x 15.5" Red Tyvek Self-Seal Mailers - Tear & Moisture Proof, Case of 100

PN: TYC1215R

12 x 15 1/2 in 14 lb. Olefin 100 PER CASE
$178.37 / CASE
IN STOCK Professional green Tyvek® envelopes designed for industrial shipping and high-visibility mailing. These 12x15.5
Envelopes & Mailers

12x15.5" Green Tyvek Self-Seal Envelopes - Tear Resistant, Case of 100

PN: TYC1215G

12 x 15 1/2 in 14 lb. Olefin 100 PER CASE
$178.37 / CASE
IN STOCK Heavy-duty 12x15.5
Envelopes & Mailers

12x15.5" Black Tyvek Self-Seal Mailers - 10X Stronger, Case of 100

PN: TYC1215B

12 x 15 1/2 in 14 lb. Olefin 100 PER CASE
$178.37 / CASE
IN STOCK 10x13
Envelopes & Mailers

10x13" Yellow Tyvek Self-Seal Envelopes - Tear & Waterproof, Case of 100

PN: TYC1013Y

10 x 13 in 14 lb. Olefin 100 PER CASE
$142.47 / CASE

Product Help Request

Send the SKU, quantity, delivery ZIP, and any required specs so we can route the request.

Buying path

Buy Boxes & Mailers by the specs that change the order

Use filters, product titles, and product pages to compare size, material, pack count, case quantity, and fit before ordering.

Compare

Use filters and product titles to narrow by the specs that affect fit.

Confirm

Open the product page before ordering a case so you can check quantity, unit, and limits.

Reorder

Save the SKU or product link for repeat purchasing and support questions.

Larger orders

For pallet, recurring, or mixed-SKU needs, send support the details before placing a large order.

What to check first

  • Inside dimensions
  • Board grade or strength rating
  • Box style and closure
  • Case or bundle quantity
Common wrong-order risk: Choosing the outside size instead of the inside size. Confirm product fit, void fill, and storage space before ordering.
Use the box size calculator -> Contact support for larger orders -> Compare corrugated box types -> View products below ->

Buying FAQ

What should I check before buying Boxes & Mailers?

Compare Inside dimensions, Board grade or strength rating, Box style and closure, Case or bundle quantity before choosing a product from this collection.

Can I buy Boxes & Mailers online?

Use the product grid to open a product page, confirm the SKU, quantity, unit, availability, and price, then add available products to cart.

When should I contact support?

Contact support for pallet, recurring, mixed-SKU, or uncertain-fit orders, or when the product page does not answer the size, quantity, or delivery question.